% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@INPROCEEDINGS{Ma:863619,
      author       = {Ma, Qianli and Tietz, Frank and Menzler, Norbert H. and
                      Guillon, Olivier},
      title        = {{T}he development of full-ceramic solid oxide cells in
                      research centre {J}uelich},
      reportid     = {FZJ-2019-03631},
      year         = {2019},
      abstract     = {Full ceramic fuel-electrodes have been widely considered as
                      alternatives to the state-of-the-art Ni-YSZ cermets in solid
                      oxide cells (SOCs) because of their high redox stability and
                      low coking risk. Among the reported redox-stable ceramic
                      materials, donor-substituted SrTiO3 shows best potential
                      because of i) high electrical conductivity after heat
                      treatment in reducing atmosphere, ii) matching thermal
                      expansion to that of YSZ, and iii) good dimensional
                      stability upon redox cycling. Research centre Juelich
                      started SOC development based on donor-substituted SrTiO3
                      since 2005. Besides the materials development for the
                      targeted conductivity, thermal expansion, chemical expansion
                      between reduction-oxidation conditions etc., fuel cell
                      fabrication was initiated with optimized stoichiometry for
                      La- or Y-substituted SrTiO3. Powders were prepared in kg
                      amounts by spray pyrolysis. Ni-CGO infiltration was
                      optimized as catalyst for electrode reaction. Fuel-electrode
                      supported single cells in dimension from 5 × 5 cm2 to 13 ×
                      13 cm2 were prepared for single cell testing or stack
                      assembly. The high power output and redox stability of the
                      cells have proven a considerable potential for practical use
                      and prospect for commercial application. The testing results
                      indicated a different electrode reaction mechanism than it
                      is known from Ni-YSZ cermets. However, difficulties in terms
                      of low mechanical strength of the substituted SrTiO3
                      materials have to be solved for realizing reliable stacking
                      of the full ceramic fuel-supported cells. Novel
                      air-electrodes based on the quasi-ternary system
                      LaFeO3–LaCoO3–LaNiO3 were also developed to avoid the
                      continuous depletion of strontium in the state-of-the-art
                      La1-xSrxFe1-yCoyO3 (LSCF) and La1-xSrxCoO3 (LSC)
                      air-electrodes during the operation of SOCs, which leads to
                      deterioration of electrical conductivity and
                      electrocatalytic activity of the air-electrodes.},
      month         = {May},
      date          = {2019-05-31},
      organization  = {International Conference on Energy,
                       Resources, Environment and Sustainable
                       Development, Xuzhou (China), 31 May
                       2019 - 3 Jun 2019},
      subtyp        = {Invited},
      cin          = {IEK-1},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {135 - Fuel Cells (POF3-135) / SOFC - Solid Oxide Fuel Cell
                      (SOFC-20140602)},
      pid          = {G:(DE-HGF)POF3-135 / G:(DE-Juel1)SOFC-20140602},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/863619},
}